form5.vb

symbol mc1000进行数据采集代码示例

Public Class Form5
    Inherits System.Windows.Forms.Form
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents Button3 As System.Windows.Forms.Button
    Dim s_name As String
    Dim s_date, s_time, s_barcode, s_kh As String
    Dim file_num As Integer
    Dim i, j As Long
    Dim txtlineCount As Long

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        MyBase.Dispose(disposing)
    End Sub

    '注意: 以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents ListBox1 As System.Windows.Forms.ListBox
    Friend WithEvents Label2 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Button1 = New System.Windows.Forms.Button
        Me.TextBox2 = New System.Windows.Forms.TextBox
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label3 = New System.Windows.Forms.Label
        Me.Button3 = New System.Windows.Forms.Button
        Me.ListBox1 = New System.Windows.Forms.ListBox
        Me.Label2 = New System.Windows.Forms.Label
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(16, 152)
        Me.Button1.Text = "确定"
        '
        'TextBox2
        '
        Me.TextBox2.Location = New System.Drawing.Point(80, 72)
        Me.TextBox2.Text = ""
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(80, 24)
        Me.TextBox1.Text = ""
        '
        'Label1
        '
        Me.Label1.Font = New System.Drawing.Font("宋体", 10.5!, System.Drawing.FontStyle.Regular)
        Me.Label1.ForeColor = System.Drawing.Color.MediumBlue
        Me.Label1.Location = New System.Drawing.Point(24, 32)
        Me.Label1.Size = New System.Drawing.Size(48, 18)
        Me.Label1.Text = "工号："
        '
        'Label3
        '
        Me.Label3.Font = New System.Drawing.Font("宋体", 10.5!, System.Drawing.FontStyle.Regular)
        Me.Label3.ForeColor = System.Drawing.Color.MediumBlue
        Me.Label3.Location = New System.Drawing.Point(24, 72)
        Me.Label3.Size = New System.Drawing.Size(48, 16)
        Me.Label3.Text = "口令："
        '
        'Button3
        '
        Me.Button3.Location = New System.Drawing.Point(136, 152)
        Me.Button3.Text = "退出"
        '
        'ListBox1
        '
        Me.ListBox1.Location = New System.Drawing.Point(48, 232)
        Me.ListBox1.Size = New System.Drawing.Size(216, 62)
        '
        'Label2
        '
        Me.Label2.Font = New System.Drawing.Font("宋体", 9.0!, System.Drawing.FontStyle.Bold)
        Me.Label2.ForeColor = System.Drawing.Color.Red
        Me.Label2.Location = New System.Drawing.Point(8, 104)
        Me.Label2.Size = New System.Drawing.Size(184, 20)
        '
        'Form5
        '
        Me.ClientSize = New System.Drawing.Size(202, 127)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.ListBox1)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.TextBox2)
        Me.Controls.Add(Me.TextBox1)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Button3)
        Me.MaximizeBox = False
        Me.Text = "员工登录"

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        '打开文件
        TextBox1.Focus()
        i = -1
        P_path = "\data\"
        P_filename = P_path + "work.dat"
        Dim lstr, pass As String
        '存在时，不存在时新建
        ''''''''''''''''''''''''''''''''////////////////
        Dim fsMyfile As IO.FileStream
        Dim swMyfile As IO.StreamReader
        '存在时，不存在时新建
        Try
            fsMyfile = New IO.FileStream(P_filename, IO.FileMode.Open, IO.FileAccess.Read)
            swMyfile = New IO.StreamReader(fsMyfile)
        Catch ex As Exception
            MsgBox("文件不存在！", MsgBoxStyle.DefaultButton1, "对不起")
            Exit Sub
        End Try
        Do
            lstr = swMyfile.ReadLine
            If Len(Trim(lstr)) < 1 Then
                MsgBox("你所输入的用户不存在！", MsgBoxStyle.DefaultButton1, "对不起")
                swMyfile.Close()
                fsMyfile.Close()
                Exit Sub
            Else
                ListBox1.Items.Add(lstr)
                i = i + 1
                If InStr(1, lstr, Trim(TextBox1.Text) + Chr(9)) Then
                    Exit Do
                End If
            End If
        Loop
        swMyfile.Close()
        fsMyfile.Close()

        If i >= 0 Then
            pass = mdi_str(ListBox1.Items(i).ToString)
            p_input = ListBox1.Items(i).ToString
            P_pass = pass
            P_kh = Trim(TextBox1.Text)
            If pass = Trim(TextBox2.Text) Then
                Dim frm As New Form1 'form1
                Me.Hide()
                frm.ShowDialog()
                Me.Close()
            Else
                MsgBox("你所输入的口令不正确！", MsgBoxStyle.DefaultButton1, "对不起")
            End If
        Else
            MsgBox("你所输入的用户不存在！", MsgBoxStyle.DefaultButton1, "对不起")
        End If
    End Sub
    Function mdi_str(ByVal str As String)
        Dim s, t As String
        s = ""
        Dim mdi_i As Integer
        mdi_i = InStr(1, str, Chr(9))
        mdi_i = mdi_i + 1

        Do While mdi_i <= Len(str)
            s = s + Mid(str, mdi_i, 1)
            mdi_i = mdi_i + 1
        Loop
        Return s
    End Function

    Private Sub Form5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        TextBox1.Focus()
        TextBox1.SelectAll()
    End Sub

    Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged

    End Sub



    Private Sub Form5_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
    End Sub

    Private Sub TextBox1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown

        If e.KeyValue = 13 Then
            TextBox2.Focus()
            TextBox2.SelectAll()
        ElseIf e.KeyValue = 27 Or e.KeyValue = 37 Then
            Me.Close()
        End If
    End Sub

    Private Sub TextBox2_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox2.KeyDown
        If e.KeyValue = 27 Or e.KeyValue = 37 Then
            Me.Close()
        End If
        If e.KeyValue = 13 Then
            '打开文件
            TextBox1.Focus()
            i = -1
            P_path = "\data\"
            P_filename = P_path + "work.dat"
            Dim lstr, pass As String
            '存在时，不存在时新建
            ''''''''''''''''''''''''''''''''////////////////
            Dim fsMyfile As IO.FileStream
            Dim swMyfile As IO.StreamReader
            '存在时，不存在时新建
            Try
                fsMyfile = New IO.FileStream(P_filename, IO.FileMode.Open, IO.FileAccess.Read)
                swMyfile = New IO.StreamReader(fsMyfile)
            Catch ex As Exception
                Label2.Text = "文件不存在！"
                Exit Sub
            End Try
            Do
                lstr = swMyfile.ReadLine
                If Len(Trim(lstr)) < 1 Then
                    Label2.Text = "你所输入的用户不存在！"
                    swMyfile.Close()
                    fsMyfile.Close()
                    Exit Sub
                Else
                    ListBox1.Items.Add(lstr)
                    i = i + 1
                    If InStr(1, lstr, Trim(TextBox1.Text) + Chr(9)) Then
                        Exit Do
                    End If
                End If
            Loop
            swMyfile.Close()
            fsMyfile.Close()

            If i >= 0 Then
                pass = mdi_str(ListBox1.Items(i).ToString)
                p_input = ListBox1.Items(i).ToString
                P_pass = pass
                P_kh = Trim(TextBox1.Text)
                If pass = Trim(TextBox2.Text) Then
                    Dim frm As New Form1 'form1
                    Me.Hide()
                    frm.ShowDialog()
                    Me.Close()
                Else
                    Label2.Text = "你所输入的口令不正确！"
                    TextBox2.Focus()
                    TextBox2.SelectAll()
                End If
            Else
                Label2.Text = "你所输入的用户不存在！"
                TextBox1.Focus()
                TextBox1.SelectAll()
            End If
        End If

    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Me.Close()
    End Sub

    Private Sub Button1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Button1.KeyDown
        If e.KeyValue = 13 Then
            '打开文件
            TextBox1.Focus()
            i = -1
            P_path = "\data\"
            P_filename = P_path + "work.dat"
            Dim lstr, pass As String
            '存在时，不存在时新建
            ''''''''''''''''''''''''''''''''////////////////
            Dim fsMyfile As IO.FileStream
            Dim swMyfile As IO.StreamReader
            '存在时，不存在时新建
            Try
                fsMyfile = New IO.FileStream(P_filename, IO.FileMode.Open, IO.FileAccess.Read)
                swMyfile = New IO.StreamReader(fsMyfile)
            Catch ex As Exception
                Label1.Text = "文件不存在！"
                Exit Sub
            End Try
            Do
                lstr = swMyfile.ReadLine
                If Len(Trim(lstr)) < 1 Then
                    Label1.Text = "你所输入的用户不存在！"
                    swMyfile.Close()
                    fsMyfile.Close()
                    Exit Sub
                Else
                    ListBox1.Items.Add(lstr)
                    i = i + 1
                    If InStr(1, lstr, Trim(TextBox1.Text) + Chr(9)) Then
                        Exit Do
                    End If
                End If
            Loop
            swMyfile.Close()
            fsMyfile.Close()

            If i >= 0 Then
                pass = mdi_str(ListBox1.Items(i).ToString)
                p_input = ListBox1.Items(i).ToString
                P_pass = pass
                P_kh = Trim(TextBox1.Text)
                If pass = Trim(TextBox2.Text) Then
                    Dim frm As New Form1 'form1
                    Me.Hide()
                    frm.ShowDialog()
                    Me.Close()
                Else
                    Label1.Text = "你所输入的口令不正确！"
                    TextBox2.Focus()
                    TextBox2.SelectAll()
                End If
            Else
                Label1.Text = "你所输入的用户不存在！"
                TextBox1.Focus()
                TextBox1.SelectAll()
            End If
        End If
    End Sub

    Private Sub TextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox2.TextChanged

    End Sub
End Class